Cooling apparatus for milk or other liquids.



I K. W. HEYMAN.

COOLING APPARATUS FOR. MILK OR OTHER LIQUIDS.

APPLICATION FILED NOV.18, 1910.

996,245. Patented June 27,1911.

eras raan COOLING APPARATUS FOR MILK OR OTHER LIQUIDS.

To all whom it may concern:

Be it known that I, KNUT VVALDEMAR I-IEYMAN, a subject of the King ofSweden, and resident of Skogstorp, Tumba, in the Kingdom of Sweden,estate-owner, have invented certain new and useful Improvements inCooling Apparatus for Milk or other Liquids, of which the following is aspecification, reference being made to the accompanying drawing.

The present invention relates to cooling apparatus for milk (or otherliquids) in which the milk in the form of a thin layer is continuouslycooled between the corrugated (or correspondingly formed) walls ofvessels containing a suitable cooling agent. The invention has for itspurpose to facilitate the cleaning of such apparatus as Well as themanufacture of them.

On the accompanying drawing is shown by way of example a milk coolercarried out in accordance with this invention.

Figure 1 shows a vertical section of the cooler, while Fig. 2 shows thesame in plan.

The passage in which the milk is cooled in the form of a thin layer, isformed by the corrugated walls 1 and 2 of two vessels 3 and 4, whichvessels when the milk is being cooled are filled with a suitable coolingagent, 6. 9. ice, and water formed from it. The ice is dropped into thecooling vessels 8 and 4: through openings 5 in the upper portions of thevessels. The milk which is to be cooled runs down into a receptacle 6,formed by depressions in the said portions, from which receptacle 6 themilk passes into the cooling passage, and the milk thus cooled isreceived by a vessel 7 placed below the cooling vessels 3 and 4c. Thecooling vessels are carried by arms 8, which may be swung on standards9, and are kept together by means of a device, 6. g.as shown-a screwbolt 10 rotatably fixed to the one arm, and a wing nut fitted on to thescrew bolt and acting on the other arm, said wing nut also serving toregulate the distance between the arms or the cooling vessels in theirusual position) and thus the thickness of the cooling passage.

When the wing nut has been loosened and the bolt turned, the coolingvessels can be swung apart from each other, so that those of theirsurfaces which are acting at the cooling process become accessible forclean H10.

' lhe cooling vessels 3 and 4 should pref- Specification of LettersPatent.

Application filed November 18, 1910.

Patented June 27, 1911.

Serial No. 593,012.

erably be mounted on the arms 8 by means of pivots 11, so that thevessels, after having been moved away from each other by swinging thearms, can be turned in such a manner that the ridges of the coolingwalls 1 and 2 extend vertically. This position of the ridges isparticularly suitable in cleaning the cooling walls, as the water then.

runs off considerably more rapidly than if the ridges are horizontal.

The pivots 11 should, as shown, he ballshaped, as the cooling walls canthen be more easily brought into a proper position relatively to eachother, when bringing the cooling vessels together.

In order to enable the cooling vessels to be turned in the manner justindicated, unimpeded by the arms 8, each of these latter is divided intotwo parts which are connected with each other by means of a hinge 12.The outer parts of the arms 8 can thus be swung backwardly on theirhinges and turned out of the way of the cooling vessels 3'and 4:, whenthe latter are to be turned. The arms may also be prolonged forwardsufficiently so as not to prevent the cooling vessels being turned.

As may be seen from Fig. 1, the ridges of thecooling wall 1 lie entirelyon the right side of the plane ab, in which the upper and lower parts ofthe wall are situated, and the cooling wall 2 is formed in acorresponding way, i. 6. its ridges lie entirely on the right side ofthe plane c(Z in which the upper and lower parts of this wall aresituated. -By this arrangement of the cooling walls 1 and 2 is attaineda simplification in the manufacture of these walls, as well as theadvantage that the distance between them is constant right out to theirlateral edges, which are situated in the same plane as the upper andlower parts of the respective walls. Moreover, tightening between thelateral edges is obtained by means of this arrangement without the aidof special tightening means.

When the vessels 8 and a are juxtaposed their upper edges rest againsteach other thus holding the vessels in the upright position shown inFig. l of the drawing.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In an apparatus of the character described, the combination withcooling vessels each having a corrugated cooling wall,

of pivoted arms supporting said vessels whereby said arms can be swungwide apart, so that the cooling surfaces of said vessels becomecompletely accessible for cleaning purposes.

2. In an apparatus of the character described, the combination withcooling vessels each having a corrugated cooling wall, of pivoted armssupporting said vessels whereby the arms can be swung wide apart, sothat the cooling surfaces of said vessels become accessible for cleaningpurposes, and means for holding the cooling vessels together in such amanner that the width of the sinuous cooling passage formed by thecooling surfaces can be varied.

3. In an apparatus of the character described, the combination withcooling vessels each having a corrugated cooling wall, of pivoted armssupporting said vessels, whereby the arms can be swung wide apart, sothat the cooling surfaces of said vessels become completely accessiblefor cleaning purposes, means for holding the cooling vessels together insuch a manner that the width of the sinuous cooling passage formed bythe cooling surfaces can be varied, and means whereby said vessels arecarried by said arms and whereby the vessels can be turned so that thecorrugations run vertically.

4. In an apparatus of the character described, the combination ofcooling vessels each having a corrugated cooling wall, the corrugationsof the one wall being situated outside the plane in which the upper andlower portions of the wall are located, and the corrugations of theother wall being situated inside the plane in which the upper and lowerportions of this wall are located, and pivoted arms supporting saidvessels whereby the arms can be swung wide apart, so that the coolingsurfaces of the vessels become completely accessible for cleaningpurposes.

In Witness whereof I have hereunto set my hand in presence of twowitnesses.

KNUT IVALDEMAR HE YM'AN.

WVitnesses Hnnwls MELINDER, HOWARD NYSTERM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. G.

